Background Body composition analysis has been used to investigate fat mass (FM) and bone mineral content (BMC) in children and adolescents diagnosed with HIV. Investigating the validity of bioelectrical impedance analysis (BIA) is interesting with respect to testing useful techniques for monitoring body composition in children and adolescents in clinical practice. The present study aimed to determine the validity of body composition analysis by BIA compared to dual‐energy X‐ray absorptiometry (DXA) and air displacement …

Near-infrared time-resolved spectroscopy (NIR TRS) can quantitatively evaluate mean optical path length (MPL). Since an increase in optical absorbers in the NIR region (eg an increase in deoxygenated hemoglobin during exercise) would shorten the MPL, the NIRS measurement area may vary depending on physical and physiological characteristics of the measurement region and/or the exercise intensity. The aim of this study was to examine the changes in MPL measured by NIR TRS during ramp cycling exercise between fat layer …

Abstract Utter, AC, McAnulty, SR, Riha, BF, Pratt, BF, and Grose, JM. The validity of multifrequency bioelectrical impedance measures to detect changes in the hydration status of wrestlers during acute dehydration and rehydration. J Strength Cond Res 26 (1): 9–15, 2012—The objective of this study was to examine the validity of multifrequency direct segmental bioelectrical impedance analysis (DSM-BIA) measures to detect changes in the hydration status of wrestlers after they underwent 3% acute dehydration and a 2-hour …

Single frequency bioelectrical impedance analysis is an inexpensive, quick and painless means of estimating body composition. However, current approaches to estimating body composition from segment resistivity have some drawbacks. The purpose of this study was to overcome these limitations by developing a better model of the relationship between resistivity and body composition. A three-compartment model of body mass and body segment resistivity is presented and calibrated to predict% Fat estimated by underwater …

Objective This study aimed to compare a state‐of‐the‐art bioelectrical impedance analysis (BIA) device with two‐point Dixon magnetic resonance imaging (MRI) for the quantification of visceral adipose tissue (VAT) as a health‐related risk factor. Methods A total of 63 male participants were measured using a 3‐T MRI scanner and a segmental, multifrequency BIA device. MRI generated fat fraction (FF) maps, in which VAT volume, total abdominal adipose tissue volume, and FF of visceral and total abdominal compartments were quantified. BIA …

Multifrequency bioelectrical impedance analysis of body composition may be an appropriate alternative to dual-energy x-ray absorptiometry. We hypothesized that there would be no significant differences between dual-energy x-ray absorptiometry and either the Biospace (Los Angeles, CA, USA) InBody 520 or 720 multifrequency bioelectrical impedance analysis devices for total lean body mass (LBM), appendicular lean mass (ALM), trunk lean mass (TM), and total fat mass (FM) in 25 men and 25 women (including lean, healthy, and obese …

Changes in body composition are related to mobility, fall risk, and mortality, especially in older adults. Various devices and methods exist to measure body composition, but bioelectrical impedance analysis (BIA) has several advantages. The purpose of this study was to validate a common BIA device with a dual-energy X-ray absorptiometer (DXA) in older adults and develop prediction equations to improve the accuracy of the BIA measurements. The participants were 277 older adults (162 women and 115 men; age …

Bioelectrical impedance analysis (BIA) is used to calculate the body fat percentage of a human by applying a small amount of alternating current through a human body and measuring the impedance. As the electrode size of a BIA device becomes small, the measurement error of impedance becomes large due to the contact resistance between the electrode and human skin. Most commercial BIA devices, therefore, utilize electrodes large enough to ignore the effect of contact resistance, eg 35× 40 mm 2× 4EA. We propose a …

Objective: To establish the accuracy of an eight-polar tactile-electrode impedance method in the assessment of total body water (TBW). Design: Transversal study. Setting: University department. Subjects: Fifty healthy subjects (25 men and 25 women) with a mean (sd) age of 40 (12) y. Methods: TBW measured by deuterium oxide dilution; resistance (R) of arms, trunk and legs measured at frequencies of 5, 50, 250 and 500 kHz with an eight-polar tactile-electrode impedance-meter (InBody 3.0, Biospace, Seoul, Korea). Results: An algorithm for …

… 検索. すべて. 本文あり. 詳細検索. すべて. 本文あり. 閉じる. タイトル. 著者名. 著者ID. 著者所属. 刊行物名. ISSN. 巻号ページ. 出版者. 参考文献. 出版年. 年から 年まで. 検索. 閉じる. 検索. 検索. Body composition assessment with segmental multifrequency bioimpedance method. SALMI JA; 被引用文献: 1件. 著者. SALMI JA; 収録刊行物. J Sports sci med J Sports sci med 2(suppl3), 1-29, 2003. 被引用文献: 1件中 1-1件 を表示. 1. 若年女性のやせと安静時代謝量および身体組成との関 係についての検討 松井 貞子 , 飯田 繭子 , 甲田 あかり , 南里 由美子 , 中山 悠子 , 野坂 桃子 …